After completing the crack of doom, pick the southern gate. Press start, hold L + R, enter B, X, B, Up. Then, enter X, Down, Y, A. You will be in perfect mode with infinity health. Beat ALL the enemies and beat the level. You will grow 4 levels or over(having all perfects).
Note: You do not have to enter the code B, X, B, Up but you will not have infinity health if you do not type it in.
A cool glitch
To do this, you must have got fire ammo with gandalf. Then do minas tiruth courtyard with gandalf. Then when you almost got 150 people, keep shooting. Then beasts will come out and gandalf will go up to them and his stick will be on fire!
Aragorn Cheats
1,000 Experience Points
Pause the game, hold L+R and press Up, B, Y, A.
Level 2 Skills
Pause the game, hold L+R and press B, Y, A, Y.
Level 4 Skills
Pause the game, hold L+R and press Down, X, B, X.
Level 6 Skills
Pause the game, hold L+R and press B,Y, X, X.
Level 8 Skills
Paude the game, hold L+R and press Up, B, Y, Up.
Restore Arrows
Pause the game, hold L+R and press Y, B, B, Y.
3-Hit Combo
Pause the game, hold L+R and press B, Down, X, Up.
4-Hit Combo
Pause the game, hold L+R and press Up, B, Y, Down.
Co-Op Codes
Share Experience
When in Co-Op Mode, pause the game, hold L+R and press Down, A, A, A.
Share Health
When in Co-Op Mode, pause the game, hold L+R and press Y, Up, B, B
Unlimited Respawns
When in Co-Op Mode, pause the game, hold L+R and press X, B, Up, X.
Defeat Gorbag
In the level cirith angol at the end you will have to fight gorbag. Then don't run up to him. Run to the spears and press z to pick them up and throw it at his sheild. Then throw another at him to make him dizzy. Then instead of throwing another at him run up to him and hit him. When he falls down, quickly stab him (R). He will get up for another sheild. Repeat this to beat gorbag.
End Bonuses
Beat the game to unlock the following:
Palantir of Saruman
Billy Boyd interview
Dom Monaghan interview
Andy Serkis interview
David Menham interview
Get cheap upgrade points in Co-op
While playing Co-op, you need to have a character that has a bane move (Example: Orc Bane). While one player uses the bane move, the other player can run up to the enemy who is being killed and kill him from behind, but be quick! Both players will get points for the kill. This works great if you use the code for Perfect Mode (only available if you've beat the game).
Invisible sam
This really isn't a cheat ,but at the end of escape from osgiliath, pressL+R after you beat the orcs and open the gate and walk out. Sam will be invisible!
Level up without fighting
When you enter a mission press start and hold L+R and press B, A, X, Y and u will get an extra level up. Note:You can only do this with one character so choose wisely!
Shoot Faster
Get out your ranged weapon, press and hold Y, R, and A at the same time, and then you should fire faster.
Spider Exterminator
To slay spiders quickly, knock them over with a strong attack (Y) and then slay them with a finishing move (R). This is helpful when you get the experience stones and when you are dueling with Shelob.
Unlock Four-Hit Combo For Aragorn
Pause the game and hold both triggers. Then press UP, B, Y, DOWN.
Unlock Gandalf's Level 4 Abilities
Press START and hold the L and R buttons. Then press Y, UP, B, A. This should unlock them. You will know it worked if you hear a metal "clank" sound.
Unlock palantir of Saruman
Complete the Crack of doom to unlock palantir of Saruman.
Unlock Palantir of Sauron
To unlock this harder bonus level, beat Crack of Doom, get Gandalf, Sam, and either Aragorn, Legolas or Gimli, to level 10. Then, go to the very top of the level select screen (the part with the 5 blue dots past Crack of Doom) and choose the one all the way on the right. Its good to use the codes for Unlimited Health, Perfect Mode, and Unlimited Ammo. It also helps to use Gandalf because he has the shield.
Unlock Secret Characters
Beat the game to unlock Pippen, Merry and Faramir.
Various Codes
Pause, then hold L and R as you enter the code. The three- and four-hit combos won't become available until your characters achieve the required levels. For example, Aragorn must be at level 4 or higher to unleash the three-hit Balrog's Gambit combo.
CODE RESULT
B, Down, X, Up Unlock all Three-Hit Combos for Aragorn
Down, Y, Up, X Unlock all Four-Hit Combos for Gandalf
Down, Y, Up, Down Give Frodo 1,000 Experience Points
A, X, Down, B Raise Gimli to Level 8
Y, Y, Y, Down Replenish Legolas's Arrows
A, Down, Down, A Unlock Merry
A, A, Y, Y Unlock Faramir
Y, X, B, Down Unlock Pippin
A, A, X, A Replenish Sam's Throwing Daggers